Weed-obsessed rapperWiz Khalifa ("Black and Yellow") will headline a concert on Saturday, July 27 at the First Security Amphitheater (previously known as the Riverfest Amphitheater). Folks we'll likely be equally — if not more — pumped to see opener Trinidad Jame$ ("All Gold Everything"). Also on the bill: 18-year-old Joey Bada$$, the latest who's been hyped to inherit the NYC rap mantle, and his Pro Era crew. Plus, Wiz Khalifa protege Berner, Chevy Woods and Smoke DZA.